MoniliniaArten

MoniliniaArten refers to the species within the fungal genus Monilinia, a group of plant pathogens in the family Sclerotiniaceae. Members of Monilinia cause brown rot diseases on a range of stone fruits and, less commonly, pome fruits. The most important species in agricultural systems are Monilinia fructicola, Monilinia laxa, and Monilinia fructigena. These species differ in geographic distribution, host preference, and virulence, but share a life cycle that enables rapid spread in humid conditions.

The fungi overwinter as sclerotia in plant debris or mummified fruit. In warm, wet springs they release conidia and, in some cases, ascospores from pseudothecia on fallen leaves. Infection occurs mainly through wounds on fruit or natural openings and can lead to blossom blight as well as fruit rot. Infected fruit develop brown, sunken lesions that expand and may exhibit concentric rings; mature fruit can mummify and remain attached to trees, continuing a source of inoculum.

Management relies on integrated practices. Sanitation is critical: remove mummies and cull infected fruit, prune for air circulation, and manage orchard debris. Cultural practices, such as timely harvest and proper storage, reduce postharvest losses. Fungicide programs are commonly used, timed to weather conditions and growth stages, with products active against Monilinia. Breeding for resistant cultivars and diagnostic tools based on molecular assays aid in monitoring and prevention.